Bleeding from erosive gastritis was rarely life - threatening.腐蚀性胃炎的出血罕有危及生命的.Investigated charring erosive characters of internal insulation of solid rocket motor under flight acceleration.研究了固体火箭发动机内绝热层在飞行加速度条件下的炭化烧蚀特性...
Son é p é e , c'est tr è s tranchant, elle coupe une jambe de l'assassin.他的剑相当的锋利, 它砍断了刺客的一条腿." Well, you take my coupe and let me drive your car to town. "“ 好吧, 你开我的小轿车,让我开你的车进城. ”I was bringing you that coupe...
The civil aviation minister ordered all the planes to be grounded.民航部长下令所有飞机不得起飞。It's believed the affair was potentially harmful to British aviation.据信该事件可能对英国航空业造成不利影响。Ten years ago, they began to develop the avia...